
Windows Defender 502 Bad Gateway: Troubleshooting Checklist
If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...
Software troubleshooting desk

If you see a 502 Bad Gateway error when opening Windows Security or trying to update Windows Defe...

If you see a "502 Bad Gateway" error in Chrome, especially after switching profiles or updating t...

You try to install a Chrome extension, but Chrome shows "Install failed" or "Could not install" —...

If Windows Defender (Microsoft Defender Antivirus) is acting up—showing outdated threat definitio...

You run a PowerShell restore script and get 'Access Denied' or 'Permission Denied' errors. This i...

If you need to uninstall Microsoft Teams—perhaps to fix a persistent issue or free up space—you'l...